公开(公告)号：US07835235B2

公开(公告)日：2010-11-16

申请号：US11808517

申请日：2007-06-11

Applicant: Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

Inventor： Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B2007/0006

Abstract: An optical pickup apparatus and an optical recording/reproducing system including the same, the optical pickup apparatus includes at least two optical systems for different types of optical recording media, one of objective lenses of the optical systems being offset from a central line of the optical recording medium, wherein the optical system including the offset objective lens having a diffraction grating diffracting light emitted from a light source to form a main beam and sub-beams, wherein the diffraction grating includes first and second diffraction regions having different grating patterns arranged alternately thereon, and a center of each sub-beam is arranged at a boundary of the first and second diffraction regions of the diffraction grating, and a center of the diffraction grating and an optical axis of the light source are adjusted to be coincided with each other, preventing generation of an alternating current in a Push-Pull signal of the sub-beams.

Abstract translation: 一种光学拾取装置和包括该光学拾取装置的光学记录/再现系统，该光学拾取装置包括用于不同类型的光学记录介质的至少两个光学系统，光学系统的物镜之一偏离光学中心线 其中所述光学系统包括具有衍射光栅的衍射光栅的光学系统，所述衍射光栅衍射从光源发射的光以形成主光束和子光束，其中所述衍射光栅包括交替地布置有不同格栅图案的第一和第二衍射区域 并且每个子光束的中心被布置在衍射光栅的第一和第二衍射区域的边界处，并且衍射光栅的中心和光源的光轴被调节为彼此一致， 防止在子光束的推挽信号中产生交流电。

公开(公告)号：US07478411B2

公开(公告)日：2009-01-13

申请号：US11226203

申请日：2005-09-15

Applicant: Byung-youn Song ,  Hyung-loo Kang ,  Sang-yol Yoon ,  Pyong-yong Seong ,  Young-won Lee

Inventor： Byung-youn Song ,  Hyung-loo Kang ,  Sang-yol Yoon ,  Pyong-yong Seong ,  Young-won Lee

IPC: G11B7/09 ,  G11B7/085 ,  G02B7/02

CPC classification number: G11B7/1369 ,  G11B7/0932 ,  G11B7/0956 ,  G11B7/13925 ,  H05K1/189 ,  H05K3/3405

Abstract: An optical pickup actuator including a multi-conductive suspension. The optical pickup actuator may include a base, a holder fixed to the base, a bobbin holding an object lens and having a plurality of driving coils, and a plurality of suspensions connected between the bobbin and the holder and movably supporting the bobbin toward the holder, wherein each of the suspensions may be a multi-conductive suspension including a flexible substrate and a plurality of wires, formed on the flexible substrate, applying currents to the coils.

Abstract translation: 一种包括多导电悬浮液的光学拾取器致动器。 光拾取器致动器可以包括基座，固定到基座的保持器，保持物镜并具有多个驱动线圈的线轴，以及连接在线轴和保持器之间的多个悬架，并且将线轴可动地支撑到保持器 ，其中每个悬架可以是形成在柔性基板上的向多个线圈施加电流的包括柔性基板和多根导线的多导体悬架。

公开(公告)号：US07457226B2

公开(公告)日：2008-11-25

申请号：US10937255

申请日：2004-09-10

Applicant: Won-Ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

Inventor： Won-Ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

IPC: G11B7/00

CPC classification number: G11B7/127 ,  H01L23/34 ,  H01L23/38 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A heat source having a device emitting heat, a case protecting and supporting the device, and a thermoelectric element absorbing the heat emitted from the device and dissipating the heat to an outside.

Abstract translation: 具有发热装置的热源，保护和支撑装置的壳体，以及吸收从装置发出的热并将热量散发到外部的热电元件。

公开(公告)号：US07272103B2

公开(公告)日：2007-09-18

申请号：US10751647

申请日：2004-01-06

Applicant: Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

Inventor： Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

IPC: G11B7/00

CPC classification number: G11B7/1263

Abstract: In order to improve the frequency characteristic of a laser power monitor device and the precision of laser power control when low-speed recording is performed, there is provided a laser power monitor device for an optical recording and/or reproducing apparatus, the laser power monitor device including a photo diode unit to receive part of a light emitted from a laser diode and output a current proportional to optical power, and a monitor circuit to receive the current output from the photo diode unit, convert the received current into a voltage, and outputs the voltage to an automatic laser power control circuit, and the photo diode unit includes a plurality of photo diodes connected to the monitor circuit to supply current to the monitor circuit. The laser power monitor device further includes a switch unit, wherein the switch unit is located between the photo diode unit and the monitor circuit to receive a signal on a current recording speed and switch so that the number of photo diodes supplying current to the monitor circuit is reduced as the recording speed is increased.

Abstract translation: 为了提高激光功率监视装置的频率特性和进行低速记录时的激光功率控制的精度，提供了一种用于光学记录和/或再现装置的激光功率监视装置，激光功率监视器 该装置包括：光电二极管单元，用于接收从激光二极管发射的一部分光并输出与​​光功率成比例的电流;以及监测电路，用于接收来自光电二极管单元的电流输出，将接收的电流转换成电压; 将电压输出到自动激光功率控制电路，并且光电二极管单元包括连接到监视器电路的多个光电二极管，以向监控电路提供电流。 所述激光功率监视装置还包括开关单元，其中所述开关单元位于所述光电二极管单元和所述监视器电路之间，以接收当前记录速度的信号并进行切换，使得向所述监视器电路提供电流的光电二极管的数量 随着记录速度的增加而减小。

公开(公告)号：US07206266B2

公开(公告)日：2007-04-17

申请号：US10822868

申请日：2004-04-13

Applicant: Pyong-yong Seong

Inventor： Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/0906 ,  G11B2007/0006

Abstract: An optical pickup, optical recording and/or reproducing apparatus including the same, and a method of realizing a tracking servo that is compatible between different types of optical data storage media. The optical recording and/or reproducing apparatus splits light from a light source into a main beam and four or more sub beams symmetrical with respect to the main beam, which are then emitted on an optical data storage medium, wherein the four or more sub beams include two first sub beams located close to the main beam and two second sub beams located away from the main beam, and detects a tracking error signal by a differential push-pull (DPP) method using detection signals of the main beam and the pair of first sub beams and of the main beam and the pair of second sub beams for ±R/RW and RAM type optical data storage media, respectively. The optical pickup and optical recording and/or reproducing apparatus makes it possible to realize a tracking servo that is compatible between ±R/RW and RAM type optical data storage media having different track pitch dimensions based on DPP.

Abstract translation: 包括其的光学拾取器，光学记录和/或再现装置以及实现在不同类型的光学数据存储介质之间兼容的跟踪伺服的方法。 光学记录和/或再现装置将光从光源分离成主光束和相对于主光束对称的四个或更多个子光束，然后在光学数据存储介质上发射，其中四个或更多个子光束 包括位于主波束附近的两个第一子波束和远离主波束的两个第二子波束，并且通过差分推挽（DPP）方法使用主波束和一对波段的检测信号来检测跟踪误差信号 分别用于±R / RW和RAM型光学数据存储介质的第一子波束和主波束和一对第二子波束。 光学拾取器和光学记录和/或再现装置使得可以实现基于DPP的具有不同轨道间距尺寸的±R / RW和RAM型光学数据存储介质之间兼容的跟踪伺服。

公开(公告)号：US20060218569A1

公开(公告)日：2006-09-28

申请号：US11385739

申请日：2006-03-22

Applicant: Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

Inventor： Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

IPC: G11B7/00

CPC classification number: G11B7/0933 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

Abstract: An optical recording and/or reproducing apparatus with an optical pickup actuator having high thrust. The optical pickup actuator may include a lens holder which holds an objective lens and is movably supported by a supporting unit, and a magnetic driving unit which drives the lens holder in a focusing direction, a tracking direction, and/or a tilting direction. The magnetic driving unit includes a surface-triple pole magnet portion and a coil portion. The surface-triple pole magnet portion has a plurality of polarized, i.e., differently magnetized, areas formed by facing sides of two magnets among three magnets. The coil portion includes tracking coils and tilt coils disposed to interact with the polarized areas of the surface-triple pole magnet portion and a focusing coil disposed to interact with a non-polarized area of the surface-triple pole magnet portion.

Abstract translation: 具有高推力的光学拾音器致动器的光学记录和/或再现装置。 光拾取器致动器可以包括保持物镜并由支撑单元可移动地支撑的透镜保持器，以及在聚焦方向，跟踪方向和/或倾斜方向上驱动透镜保持器的磁性驱动单元。 磁驱动单元包括表面三极磁体部分和线圈部分。 表面三极磁体部分具有由三个磁体中的两个磁体的相对侧面形成的多个极化的，即不同的磁化区域。 线圈部分包括跟踪线圈和设置成与表面三极磁体部分的偏振区域相互作用的倾斜线圈和设置成与表面三极磁铁部分的非偏振区域相互作用的聚焦线圈。

公开(公告)号：US20050018560A1

公开(公告)日：2005-01-27

申请号：US10897015

申请日：2004-07-23

Applicant: Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

Inventor： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

IPC: G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC classification number: G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B2007/0006

Abstract: A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.

Abstract translation: 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

公开(公告)号：US08493831B2

公开(公告)日：2013-07-23

申请号：US10897015

申请日：2004-07-23

Applicant: Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

Inventor： Ui-yol Kim ,  Tae-kyung Kim ,  Chong-sam Chung ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B2007/0006

Abstract: A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.

Abstract translation: 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。

公开(公告)号：US07453656B2

公开(公告)日：2008-11-18

申请号：US11385739

申请日：2006-03-22

Applicant: Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

Inventor： Dae-jong Jang ,  Byung-youn Song ,  Young-bin Lee ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Young-won Lee

IPC: G02B7/02

CPC classification number: G11B7/0933 ,  G11B7/0932 ,  G11B7/0935 ,  G11B7/0956

Abstract: An optical recording and/or reproducing apparatus with an optical pickup actuator having high thrust. The optical pickup actuator may include a lens holder which holds an objective lens and is movably supported by a supporting unit, and a magnetic driving unit which drives the lens holder in a focusing direction, a tracking direction, and/or a tilting direction. The magnetic driving unit includes a surface-triple pole magnet portion and a coil portion. The surface-triple pole magnet portion has a plurality of polarized, i.e., differently magnetized, areas formed by facing sides of two magnets among three magnets. The coil portion includes tracking coils and tilt coils disposed to interact with the polarized areas of the surface-triple pole magnet portion and a focusing coil disposed to interact with a non-polarized area of the surface-triple pole magnet portion.

Abstract translation: 具有高推力的光学拾音器致动器的光学记录和/或再现装置。 光拾取器致动器可以包括保持物镜并由支撑单元可移动地支撑的透镜保持器，以及在聚焦方向，跟踪方向和/或倾斜方向上驱动透镜保持器的磁性驱动单元。 磁驱动单元包括表面三极磁体部分和线圈部分。 表面三极磁体部分具有由三个磁体中的两个磁体的相对侧面形成的多个极化的，即不同的磁化区域。 线圈部分包括跟踪线圈和设置成与表面 - 三极磁体部分的偏振区域相互作用的倾斜线圈和设置成与表面三极磁铁部分的非偏振区域相互作用的聚焦线圈。

公开(公告)号：US07355953B2

公开(公告)日：2008-04-08

申请号：US10686785

申请日：2003-10-17

Applicant: Ui-yol Kim ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Myoung-cheol Cho ,  Kyung-ui Park

Inventor： Ui-yol Kim ,  Byung-ryul Ryoo ,  Pyong-yong Seong ,  Myoung-cheol Cho ,  Kyung-ui Park

IPC: G11B7/125

CPC classification number: G11B7/1395 ,  G11B7/1263 ,  G11B7/1353 ,  G11B2007/13727

Abstract: An optical pickup includes a light source which emits light, a grating which separates a portion of the light emitted from the light source, a reflecting member which reflects another portion of the light emitted from the light source, a monitoring photodetector disposed on a traveling path of the light reflected from the reflecting member and which measures the reflected light, an optical path changer which changes an optical path of the light separated by the grating, an objective lens light which condenses the light the optical path of which is changed onto a disc, and a signal detecting photodetector which receives the light reflected from the disc.

Abstract translation: 光拾取器包括发光的光源，分离从光源发出的光的一部分的光栅，反射从光源发射的光的另一部分的反射部件，设置在行进路径上的监视光电检测器 从反射构件反射并测量反射光的光，改变由光栅分离的光的光路的光路改变器，将其光路改变为光盘的光会聚的物镜光 以及接收从盘反射的光的信号检测光电检测器。